Can't Log on or Search on Yahoo

Yahoo is the most popular web portal which is ingrate a search engine and an index of World Wide Web sites organized in a grouping of topic classifications. Yahoo is linked to the popular Web search engine. It provided a Web portal, search engine Yahoo! And related services, including Yahoo! Directory, Yahoo! Mail, Yahoo! News, Yahoo Finance, Yahoo! Groups, Yahoo! Answers, adverting, online mapping, video sharing, fantasy sports, and its social media website.
Yahoo! Is the popular site in the United States, Yahoo! was the famous read news and media website -with over 7 billion views per month- ranking as the sixth -most visited website globally in 2016.
Yahoo Account Recovery
Don't get locked out of your Yahoo! Account, it is essential to have a valid mobile phone or Email address of your account in case you ever lose or forget your password. You want to switch over to a secure, password-free sign -in, to verify your identity in an unfamiliar location and receive notifications of changes made to your account.
Steps:
1 Open your browser
2 Enter Yahoo Email Recovery phone number
3 Check the 'Verification Code' for Yahoo Recovery Account
4 Enter ' Code'
5 Create a new password
6 Click 'Continue'
Still you are facing trouble in sign-in, you can use Sign-in Helper to get into your account because your recovery may get wrong or inaccessible, you won't be to regain access to your account again.
Ways to recover your old Yahoo Account
1 Open 'Yahoo! Or Sign-in Helper Page
2 Enter your Yahoo Mail Address or your phone number
3 Enter ' Yahoo Email or enter the Account Name that is a part of your Email address -comes before '@yahoo.com'
4 Select 'Continue'.
These ways to recover your Yahoo! Account are seamless, you're tuning to your favorite website to connect anywhere and anytime, now!
https://www.kequery.com/internet/how-to-recover-yahoo-password-without-phone-number/

1. Click on the envelope icon (Mail) on the Yahoo home page.
2. You will see two boxes.
3. Top Box: Enter your User Name (not case sensitive).
4. Bottom Box: Enter your password. Password is case sensitive.
5. Hit the sign in key or press the 'Enter Tab' on your computer keyboard.
6. There is a box to click if you can't remember your password.

If you are unable to sign in to Yahoo! Web Messenger, you may see an error message such as "Website Blocked" or a notification explaining that your login credentials are incorrect.

If your computer does not meet the minimum system requirements, the browser may not be able to display the page at all.

Confirm that your computer meets the system requirements and that the Yahoo! Web Messenger website is not blocked on your network, and confirm that your password is correct to sign in and begin chatting online. No Account
To log in to Yahoo! Web Messenger, you must have a Yahoo! account.
This enables your friends to add you to their contact lists and chat with you.

It also gives you access to other services such as Yahoo! Mail.
To create an account from the Yahoo! Web Messenger page, click the "Get Started" button, and then click "Sign Up" on the following page.

Provide the requested basic information, including your name and birth date, and select your desired username and password.

Incorrect Password
When signing in to Yahoo! Web Messenger, you must provide the password that you selected when creating your Yahoo! account.

If you provide an incorrect password when signing in, Yahoo! Web Messenger displays the error message "Invalid ID or Password."
Click the "I can't access my account" link at the bottom of the sign-in screen.

On the following screen, click "I forgot my password" and then click "Next."
Follow the prompts to verify your identity and reset your Yahoo! password.

System Requirements
You may see errors if you attempt to use Yahoo! Web Messenger on a computer running an older operating system such as Windows 2000 or Millennium Edition, as Web Messenger requires Internet Explorer 6 or newer. Mozilla Firefox, Opera and Safari are also officially supported.

If you have confirmed that you are running a supported browser, navigate to the Adobe Flash Player page at adobe.com/software/flash/about.

The screen should display the message "Adobe Flash Player Successfully Installed."
Download and install Adobe Flash if you do not see this message.

Website Blocked
If you receive an error message such as "This page has been blocked" when you attempt to access the Yahoo! Web Messenger page, your network administrator has elected to block the website in the network's firewall.

Parents can also use home routers to block websites.
Ask your parents or network administrator to remove the block so you can use Yahoo! Web Messenger.
http://www.adobe.com/software/flash/about/

why, you can't log in your yahoo, is either your password or user name is not correct or properly entered. So check if you enter the right password or user name to log in. Because there is no way you enter the right user name and password and you can't in.be sure of what detail you use in creating your account.

I would like to help you with your issue. but we have to check the following first

http://webmessenger.yahoo.com/ try log into the Web Messenger

> Step 1: Test Your Internet Connection
> Step 2: Verify Your Yahoo! ID and Password
Open Internet explorer and www.mail.yahoo.com
Check by sign in to you account
> Step 3: Test Your Access to Secure Pages
Make sure that you can access secure pages from Internet Explorer
Try to sign in to Yahoo! by going to the Yahoo! sign in page and enterthe same Yahoo! ID and password you were using before.
> Step 4: Verify Credentials
Verify that the same Yahoo! ID and password you used before in the laststep also works in the online version of Messenger, Yahoo! Messengerfor the Web:
http://webmessenger.yahoo.com/
enter the same Yahoo! ID and password you were using before.
> Step 5: Check Connection Settings
Click the Messenger menu and select Connection Preferences.
Click Connect directly to the Internet, and then click OK.

Check by Changing the connection type to a connection via a proxy server:
Click the Messenger menu and select Connection Preferences.
Click Connect via a proxy server, then under this option, select HTTP proxy, and then click OK.

Hoping this article will be helpful for you

Try creating a new account, or try the forgot password link.

I would like to help you with your issue. but we have to check the following first

http://webmessenger.yahoo.com/ try log into the Web Messenger

> Step 1: Test Your Internet Connection
> Step 2: Verify Your Yahoo! ID and Password
Open Internet explorer and www.mail.yahoo.com
Check by sign in to you account
> Step 3: Test Your Access to Secure Pages
Make sure that you can access secure pages from Internet Explorer
Try to sign in to Yahoo! by going to the Yahoo! sign in page and enter the same Yahoo! ID and password you were using before.
> Step 4: Verify Credentials
Verify that the same Yahoo! ID and password you used before in the last step also works in the online version of Messenger, Yahoo! Messenger for the Web:
http://webmessenger.yahoo.com/
enter the same Yahoo! ID and password you were using before.
> Step 5: Check Connection Settings
Click the Messenger menu and select Connection Preferences.
Click Connect directly to the Internet, and then click OK.

Check by Changing the connection type to a connection via a proxy server:
Click the Messenger menu and select Connection Preferences.
Click Connect via a proxy server, then under this option, select HTTP proxy, and then click OK.

Hoping this article will be helpful for you

I would like to help you with your issue. but we have to check the following first

http://webmessenger.yahoo.com/ try log into the Web Messenger

> Step 1: Test Your Internet Connection
> Step 2: Verify Your Yahoo! ID and Password
Open Internet explorer and www.mail.yahoo.com
Check by sign in to you account
> Step 3: Test Your Access to Secure Pages
Make sure that you can access secure pages from Internet Explorer
Try to sign in to Yahoo! by going to the Yahoo! sign in page and enter the same Yahoo! ID and password you were using before.
> Step 4: Verify Credentials
Verify that the same Yahoo! ID and password you used before in the last step also works in the online version of Messenger, Yahoo! Messenger for the Web:
http://webmessenger.yahoo.com/
enter the same Yahoo! ID and password you were using before.
> Step 5: Check Connection Settings
Click the Messenger menu and select Connection Preferences.
Click Connect directly to the Internet, and then click OK.

Check by Changing the connection type to a connection via a proxy server:
Click the Messenger menu and select Connection Preferences.
Click Connect via a proxy server, then under this option, select HTTP proxy, and then click OK.


Last is Uninstall all the Yahoo Tool Bars and Yahoo applications , Yahoo Messenger, and Yahoo Updates from Program list i.e Control panel - Add/Rem Programs ..
And reinstall the Yahoo Messenger again -

Hoping the above info will be useful for you